//
//  RootViewController.m
//  UI12_Block传值
//
//  Created by dllo on 15/11/24.
//  Copyright (c) 2015年 dllo. All rights reserved.
//

#import "RootViewController.h"
#import "SecondViewController.h"

@interface RootViewController ()

@end

@implementation RootViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.view.backgroundColor = [UIColor whiteColor];
    
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"下一页" style:UIBarButtonItemStylePlain target:self action:@selector(rightAction:)];
    
//    void (^block1)(void) = ^(void){
//        NSLog(@"aaa");
//    };
//    block1();
//    
//    void (^block2) (NSString *) = ^(NSString *str){
//        NSLog(@"%@", str);
//    };
//    block2(@"bbb");
    
    
    
    
}

- (void)rightAction:(UIBarButtonItem *)sender
{
    SecondViewController *secondVC = [[SecondViewController alloc] init];
    
//    __unsafe_unretained RootViewController *rootVC = self;
//    
//    void (^colorBlock)(UIColor *) = ^(UIColor *myColor){
//        rootVC.view.backgroundColor = myColor;
//    };
//    [secondVC sendBlock: colorBlock str:@"aaa"];

#warning block传值1 - 定义block, 并通过调用secondVC的方法将block地址传递过去
    __unsafe_unretained RootViewController *rootVC = self;
    [secondVC sendBlock:^(UIColor *myColor) {
        
        rootVC.view.backgroundColor = myColor;
        
    } str:@"aaa"];
    
    
    [self.navigationController pushViewController:secondVC animated:YES];
    [secondVC release];

}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end
